Question

has

确定数据是否存在

has($table, $where)

• table [string]

  表名.

• where [array]

  WHERE 条件.

has($table, $join, $where)

• table [string]

  表名.

• join [array]

  多表查询.

• where [array]

  WHERE条件.

Return: [boolean] 返回 TRUE 或者 FALSE.可用于做密码判断。

if ($database->has("account", [	"AND" => [		"OR" => [			"user_name" => "foo",			"email" => "foo"		],		"password" => "12345"	]])){	echo "Password is correct.";}else{	echo "Password error.";}